Title

Geant4 Tracks of NaI Cubic Detector Peak Efficiency, Including Coincidence Summing Correction for Rectangular Sources

Document Type

Article

Abstract

The optimization of measurement of environmental samples is achieved by putting the sample closer to the detector to increase the full-energy peak efficiency, which leads to decrease of the detection limit. The present work inspects the utilization of Geant4 simulation for a NaI cubic scintillation detector with a cavity using two tracks. The radionuclide option includes coincidence summing, and the monoenergetic option is summing free coincidence. The ratio between the monoenergetic to redionuclide options gives the coincidence summing correction factors. In the experiments a gamma-ray aqueous source containing the radionuclide 152Eu covering the range from 121 to 1408 keV was used. Comparing the monoenergetic option for calculating the full-energy peak efficiency and the corrected experimental efficiency, the values are in agreement.

Publication Date

1-1-2021

Faculty

Faculty of Applied Health Sciences Technology

Subject Area

Physical Sciences, General Energy

Indexed in Scopus

yes

Indexed in Web Of Science

yes

DOI

https://doi.org/10.1080/00295639.2021.1895406

Volume

195

Keywords

coincidence summing, cubic detector, full-energy peak efficiency, Geant4 simulation, rectangular sources

ISSN

00295639

eISSN

1943748X

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